Cloudera Docs

Enabling Impala geospatial

Enable the native geospatial library in a Cloudera Data Warehouse Impala Virtual Warehouse.

To use geospatial functions in Cloudera Data Warehouse, you must enable the integrated ESRI library. Enabling this library allows Impala to process spatial data types and activates native C++ acceleration for supported functions.

  1. Go to the Cloudera Data Warehouse service.
  2. In the Virtual Warehouses tab, locate the Impala Virtual Warehouse you want to configure.
  3. Click the icon and select Configurations.
  4. Select the Impala Service Advanced Configuration Snippet (Safety Valve) for impalad_flags property.
  5. Enter the --geospatial_library=HIVE_ESRI startup flag.
  6. Click Save and restart the Virtual Warehouse to apply the changes.